Optical telescope



FIG. 1 is a top, front, left side isometric view of a first embodimentof an optical telescope;

FIG. 2 is a top, rear, right side view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a top, front, left side isometric view of a second embodimentof an optical telescope;

FIG. 9 is a top, rear, right side view thereof;

FIG. 10 is a right side elevational view thereof;

FIG. 11 is a bottom plan view thereof;

FIG. 12 is a top plan view thereof;

FIG. 13 is a rear elevational view thereof; and,

FIG. 14 is a front elevational view thereof.

The ornamental design for an optical telescope, as shown and described.